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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/scheduler/child/web_task_runner_impl.h"
#include "base/bind.h"
#include "base/location.h"
#include "components/scheduler/base/task_queue.h"
#include "components/scheduler/base/time_domain.h"
#include "third_party/WebKit/public/platform/WebTraceLocation.h"
namespace scheduler {
WebTaskRunnerImpl::WebTaskRunnerImpl(scoped_refptr<TaskQueue> task_queue)
: task_queue_(task_queue) {}
WebTaskRunnerImpl::~WebTaskRunnerImpl() {}
void WebTaskRunnerImpl::postTask(const blink::WebTraceLocation& web_location,
blink::WebTaskRunner::Task* task) {
tracked_objects::Location location(web_location.functionName(),
web_location.fileName(), -1, nullptr);
task_queue_->PostTask(
location,
base::Bind(&WebTaskRunnerImpl::runTask,
base::Passed(scoped_ptr<blink::WebTaskRunner::Task>(task))));
}
void WebTaskRunnerImpl::postDelayedTask(
const blink::WebTraceLocation& web_location,
blink::WebTaskRunner::Task* task,
double delayMs) {
DCHECK_GE(delayMs, 0.0);
tracked_objects::Location location(web_location.functionName(),
web_location.fileName(), -1, nullptr);
task_queue_->PostDelayedTask(
location,
base::Bind(&WebTaskRunnerImpl::runTask,
base::Passed(scoped_ptr<blink::WebTaskRunner::Task>(task))),
base::TimeDelta::FromMillisecondsD(delayMs));
}
double WebTaskRunnerImpl::virtualTimeSeconds() const {
return (Now() - base::TimeTicks::UnixEpoch()).InSecondsF();
}
double WebTaskRunnerImpl::monotonicallyIncreasingVirtualTimeSeconds() const {
return Now().ToInternalValue() /
static_cast<double>(base::Time::kMicrosecondsPerSecond);
}
base::TimeTicks WebTaskRunnerImpl::Now() const {
TimeDomain* time_domain = task_queue_->GetTimeDomain();
// It's possible task_queue_ has been Unregistered which can lead to a null
// TimeDomain. If that happens just return the current real time.
if (!time_domain)
return base::TimeTicks::Now();
return time_domain->Now();
}
blink::WebTaskRunner* WebTaskRunnerImpl::clone() {
return new WebTaskRunnerImpl(task_queue_);
}
void WebTaskRunnerImpl::runTask(scoped_ptr<blink::WebTaskRunner::Task> task)
{
task->run();
}
} // namespace scheduler
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